Home / 142,967.77-197,319.17-79,326.07

Finding the Fourth Proportional to 142,967.77, 197,319.17 and 79,326.07

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Solution

The fourth proportional to 142,967.77, 197,319.17 and 79,326.07 is: 109,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,967.77 : 197,319.17 = 79,326.07 : x
  2. Step 2: Convert to fraction form
    142,967.77/197,319.17 = 79,326.07/x
  3. Step 3: Cross multiply
    142,967.77x = 197,319.17 × 79,326.07
  4. Step 4: Simplify right side
    142,967.77x = 15,652,553,996.78
  5. Step 5: Solve for x
    x = 15,652,553,996.78/142,967.77
  6. Step 6: Final answer
    x = 109,483.10

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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.