Home / 157,140.20-235,710.30-38,810.60

Finding the Fourth Proportional to 157,140.20, 235,710.30 and 38,810.60

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Solution

The fourth proportional to 157,140.20, 235,710.30 and 38,810.60 is: 58,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,140.20 : 235,710.30 = 38,810.60 : x
  2. Step 2: Convert to fraction form
    157,140.20/235,710.30 = 38,810.60/x
  3. Step 3: Cross multiply
    157,140.20x = 235,710.30 × 38,810.60
  4. Step 4: Simplify right side
    157,140.20x = 9,148,058,169.18
  5. Step 5: Solve for x
    x = 9,148,058,169.18/157,140.20
  6. Step 6: Final answer
    x = 58,215.90

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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.