Home / 116,451.52-160,575.92-78,660.16

Finding the Fourth Proportional to 116,451.52, 160,575.92 and 78,660.16

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Solution

The fourth proportional to 116,451.52, 160,575.92 and 78,660.16 is: 108,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,451.52 : 160,575.92 = 78,660.16 : x
  2. Step 2: Convert to fraction form
    116,451.52/160,575.92 = 78,660.16/x
  3. Step 3: Cross multiply
    116,451.52x = 160,575.92 × 78,660.16
  4. Step 4: Simplify right side
    116,451.52x = 12,630,927,559.35
  5. Step 5: Solve for x
    x = 12,630,927,559.35/116,451.52
  6. Step 6: Final answer
    x = 108,465.12

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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.