Home / 103,005.18-142,085.07-60,528.78

Finding the Fourth Proportional to 103,005.18, 142,085.07 and 60,528.78

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Solution

The fourth proportional to 103,005.18, 142,085.07 and 60,528.78 is: 83,493.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,005.18 : 142,085.07 = 60,528.78 : x
  2. Step 2: Convert to fraction form
    103,005.18/142,085.07 = 60,528.78/x
  3. Step 3: Cross multiply
    103,005.18x = 142,085.07 × 60,528.78
  4. Step 4: Simplify right side
    103,005.18x = 8,600,235,943.31
  5. Step 5: Solve for x
    x = 8,600,235,943.31/103,005.18
  6. Step 6: Final answer
    x = 83,493.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.