Home / 109,316.17-150,894.05-64,008.72

Finding the Fourth Proportional to 109,316.17, 150,894.05 and 64,008.72

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Solution

The fourth proportional to 109,316.17, 150,894.05 and 64,008.72 is: 88,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,316.17 : 150,894.05 = 64,008.72 : x
  2. Step 2: Convert to fraction form
    109,316.17/150,894.05 = 64,008.72/x
  3. Step 3: Cross multiply
    109,316.17x = 150,894.05 × 64,008.72
  4. Step 4: Simplify right side
    109,316.17x = 9,658,534,996.12
  5. Step 5: Solve for x
    x = 9,658,534,996.12/109,316.17
  6. Step 6: Final answer
    x = 88,354.13

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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.