Home / 121,776.88-182,683.56-42,877.20

Finding the Fourth Proportional to 121,776.88, 182,683.56 and 42,877.20

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Solution

The fourth proportional to 121,776.88, 182,683.56 and 42,877.20 is: 64,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,776.88 : 182,683.56 = 42,877.20 : x
  2. Step 2: Convert to fraction form
    121,776.88/182,683.56 = 42,877.20/x
  3. Step 3: Cross multiply
    121,776.88x = 182,683.56 × 42,877.20
  4. Step 4: Simplify right side
    121,776.88x = 7,832,959,538.83
  5. Step 5: Solve for x
    x = 7,832,959,538.83/121,776.88
  6. Step 6: Final answer
    x = 64,322.22

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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.