Home / 118,428.32-163,425.92-64,710.80

Finding the Fourth Proportional to 118,428.32, 163,425.92 and 64,710.80

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Solution

The fourth proportional to 118,428.32, 163,425.92 and 64,710.80 is: 89,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.32 : 163,425.92 = 64,710.80 : x
  2. Step 2: Convert to fraction form
    118,428.32/163,425.92 = 64,710.80/x
  3. Step 3: Cross multiply
    118,428.32x = 163,425.92 × 64,710.80
  4. Step 4: Simplify right side
    118,428.32x = 10,575,422,023.94
  5. Step 5: Solve for x
    x = 10,575,422,023.94/118,428.32
  6. Step 6: Final answer
    x = 89,298.08

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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.