Home / 142,663.02-196,874.79-79,000.74

Finding the Fourth Proportional to 142,663.02, 196,874.79 and 79,000.74

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Solution

The fourth proportional to 142,663.02, 196,874.79 and 79,000.74 is: 109,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,663.02 : 196,874.79 = 79,000.74 : x
  2. Step 2: Convert to fraction form
    142,663.02/196,874.79 = 79,000.74/x
  3. Step 3: Cross multiply
    142,663.02x = 196,874.79 × 79,000.74
  4. Step 4: Simplify right side
    142,663.02x = 15,553,254,097.34
  5. Step 5: Solve for x
    x = 15,553,254,097.34/142,663.02
  6. Step 6: Final answer
    x = 109,020.92

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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.