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Finding the Fourth Proportional to 102,957.84, 142,068.60 and 60,500.88

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Solution

The fourth proportional to 102,957.84, 142,068.60 and 60,500.88 is: 83,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,957.84 : 142,068.60 = 60,500.88 : x
  2. Step 2: Convert to fraction form
    102,957.84/142,068.60 = 60,500.88/x
  3. Step 3: Cross multiply
    102,957.84x = 142,068.60 × 60,500.88
  4. Step 4: Simplify right side
    102,957.84x = 8,595,275,320.37
  5. Step 5: Solve for x
    x = 8,595,275,320.37/102,957.84
  6. Step 6: Final answer
    x = 83,483.45

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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.