Home / 142,774.60-197,030.11-79,113.46

Finding the Fourth Proportional to 142,774.60, 197,030.11 and 79,113.46

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Solution

The fourth proportional to 142,774.60, 197,030.11 and 79,113.46 is: 109,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,774.60 : 197,030.11 = 79,113.46 : x
  2. Step 2: Convert to fraction form
    142,774.60/197,030.11 = 79,113.46/x
  3. Step 3: Cross multiply
    142,774.60x = 197,030.11 × 79,113.46
  4. Step 4: Simplify right side
    142,774.60x = 15,587,733,726.28
  5. Step 5: Solve for x
    x = 15,587,733,726.28/142,774.60
  6. Step 6: Final answer
    x = 109,177.22

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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.