Home / 142,332.60-196,416.18-78,673.08

Finding the Fourth Proportional to 142,332.60, 196,416.18 and 78,673.08

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Solution

The fourth proportional to 142,332.60, 196,416.18 and 78,673.08 is: 108,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,332.60 : 196,416.18 = 78,673.08 : x
  2. Step 2: Convert to fraction form
    142,332.60/196,416.18 = 78,673.08/x
  3. Step 3: Cross multiply
    142,332.60x = 196,416.18 × 78,673.08
  4. Step 4: Simplify right side
    142,332.60x = 15,452,665,842.43
  5. Step 5: Solve for x
    x = 15,452,665,842.43/142,332.60
  6. Step 6: Final answer
    x = 108,567.30

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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.