Home / 142,035.95-196,001.34-78,373.60

Finding the Fourth Proportional to 142,035.95, 196,001.34 and 78,373.60

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Solution

The fourth proportional to 142,035.95, 196,001.34 and 78,373.60 is: 108,151.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,035.95 : 196,001.34 = 78,373.60 : x
  2. Step 2: Convert to fraction form
    142,035.95/196,001.34 = 78,373.60/x
  3. Step 3: Cross multiply
    142,035.95x = 196,001.34 × 78,373.60
  4. Step 4: Simplify right side
    142,035.95x = 15,361,329,836.72
  5. Step 5: Solve for x
    x = 15,361,329,836.72/142,035.95
  6. Step 6: Final answer
    x = 108,151.00

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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.