Home / 105,090.24-157,706.76-42,772.08

Finding the Fourth Proportional to 105,090.24, 157,706.76 and 42,772.08

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Solution

The fourth proportional to 105,090.24, 157,706.76 and 42,772.08 is: 64,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.24 : 157,706.76 = 42,772.08 : x
  2. Step 2: Convert to fraction form
    105,090.24/157,706.76 = 42,772.08/x
  3. Step 3: Cross multiply
    105,090.24x = 157,706.76 × 42,772.08
  4. Step 4: Simplify right side
    105,090.24x = 6,745,446,155.26
  5. Step 5: Solve for x
    x = 6,745,446,155.26/105,090.24
  6. Step 6: Final answer
    x = 64,187.18

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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.