Home / 121,713.40-182,570.10-42,916.60

Finding the Fourth Proportional to 121,713.40, 182,570.10 and 42,916.60

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Solution

The fourth proportional to 121,713.40, 182,570.10 and 42,916.60 is: 64,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,713.40 : 182,570.10 = 42,916.60 : x
  2. Step 2: Convert to fraction form
    121,713.40/182,570.10 = 42,916.60/x
  3. Step 3: Cross multiply
    121,713.40x = 182,570.10 × 42,916.60
  4. Step 4: Simplify right side
    121,713.40x = 7,835,287,953.66
  5. Step 5: Solve for x
    x = 7,835,287,953.66/121,713.40
  6. Step 6: Final answer
    x = 64,374.90

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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.