Home / 125,478.28-173,148.51-74,482.30

Finding the Fourth Proportional to 125,478.28, 173,148.51 and 74,482.30

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Solution

The fourth proportional to 125,478.28, 173,148.51 and 74,482.30 is: 102,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,478.28 : 173,148.51 = 74,482.30 : x
  2. Step 2: Convert to fraction form
    125,478.28/173,148.51 = 74,482.30/x
  3. Step 3: Cross multiply
    125,478.28x = 173,148.51 × 74,482.30
  4. Step 4: Simplify right side
    125,478.28x = 12,896,499,266.37
  5. Step 5: Solve for x
    x = 12,896,499,266.37/125,478.28
  6. Step 6: Final answer
    x = 102,778.74

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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.