Home / 105,371.85-157,898.61-42,129.48

Finding the Fourth Proportional to 105,371.85, 157,898.61 and 42,129.48

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Solution

The fourth proportional to 105,371.85, 157,898.61 and 42,129.48 is: 63,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,371.85 : 157,898.61 = 42,129.48 : x
  2. Step 2: Convert to fraction form
    105,371.85/157,898.61 = 42,129.48/x
  3. Step 3: Cross multiply
    105,371.85x = 157,898.61 × 42,129.48
  4. Step 4: Simplify right side
    105,371.85x = 6,652,186,332.02
  5. Step 5: Solve for x
    x = 6,652,186,332.02/105,371.85
  6. Step 6: Final answer
    x = 63,130.58

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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.