Home / 121,657.68-182,514.60-42,772.32

Finding the Fourth Proportional to 121,657.68, 182,514.60 and 42,772.32

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Solution

The fourth proportional to 121,657.68, 182,514.60 and 42,772.32 is: 64,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,657.68 : 182,514.60 = 42,772.32 : x
  2. Step 2: Convert to fraction form
    121,657.68/182,514.60 = 42,772.32/x
  3. Step 3: Cross multiply
    121,657.68x = 182,514.60 × 42,772.32
  4. Step 4: Simplify right side
    121,657.68x = 7,806,572,875.87
  5. Step 5: Solve for x
    x = 7,806,572,875.87/121,657.68
  6. Step 6: Final answer
    x = 64,168.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.