Home / 103,925.60-143,390.84-63,624.66

Finding the Fourth Proportional to 103,925.60, 143,390.84 and 63,624.66

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Solution

The fourth proportional to 103,925.60, 143,390.84 and 63,624.66 is: 87,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,925.60 : 143,390.84 = 63,624.66 : x
  2. Step 2: Convert to fraction form
    103,925.60/143,390.84 = 63,624.66/x
  3. Step 3: Cross multiply
    103,925.60x = 143,390.84 × 63,624.66
  4. Step 4: Simplify right side
    103,925.60x = 9,123,193,442.11
  5. Step 5: Solve for x
    x = 9,123,193,442.11/103,925.60
  6. Step 6: Final answer
    x = 87,785.81

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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.