Home / 105,502,355.24-157,980,985.24-72,813,791.12

Finding the Fourth Proportional to 105,502,355.24, 157,980,985.24 and 72,813,791.12

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Solution

The fourth proportional to 105,502,355.24, 157,980,985.24 and 72,813,791.12 is: 109,032,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,502,355.24 : 157,980,985.24 = 72,813,791.12 : x
  2. Step 2: Convert to fraction form
    105,502,355.24/157,980,985.24 = 72,813,791.12/x
  3. Step 3: Cross multiply
    105,502,355.24x = 157,980,985.24 × 72,813,791.12
  4. Step 4: Simplify right side
    105,502,355.24x = 11,503,194,460,197,164
  5. Step 5: Solve for x
    x = 11,503,194,460,197,164/105,502,355.24
  6. Step 6: Final answer
    x = 109,032,584.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.