Home / 145,780.08-218,694.96-66,901.02

Finding the Fourth Proportional to 145,780.08, 218,694.96 and 66,901.02

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Solution

The fourth proportional to 145,780.08, 218,694.96 and 66,901.02 is: 100,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,780.08 : 218,694.96 = 66,901.02 : x
  2. Step 2: Convert to fraction form
    145,780.08/218,694.96 = 66,901.02/x
  3. Step 3: Cross multiply
    145,780.08x = 218,694.96 × 66,901.02
  4. Step 4: Simplify right side
    145,780.08x = 14,630,915,892.86
  5. Step 5: Solve for x
    x = 14,630,915,892.86/145,780.08
  6. Step 6: Final answer
    x = 100,362.93

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1.5x scale

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.