Home / 125,478.77-173,154.65-71,769.69

Finding the Fourth Proportional to 125,478.77, 173,154.65 and 71,769.69

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Solution

The fourth proportional to 125,478.77, 173,154.65 and 71,769.69 is: 99,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,478.77 : 173,154.65 = 71,769.69 : x
  2. Step 2: Convert to fraction form
    125,478.77/173,154.65 = 71,769.69/x
  3. Step 3: Cross multiply
    125,478.77x = 173,154.65 × 71,769.69
  4. Step 4: Simplify right side
    125,478.77x = 12,427,255,193.71
  5. Step 5: Solve for x
    x = 12,427,255,193.71/125,478.77
  6. Step 6: Final answer
    x = 99,038.71

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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.