Home / 209,001.87-288,425.21-113,510.16

Finding the Fourth Proportional to 209,001.87, 288,425.21 and 113,510.16

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Solution

The fourth proportional to 209,001.87, 288,425.21 and 113,510.16 is: 156,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,001.87 : 288,425.21 = 113,510.16 : x
  2. Step 2: Convert to fraction form
    209,001.87/288,425.21 = 113,510.16/x
  3. Step 3: Cross multiply
    209,001.87x = 288,425.21 × 113,510.16
  4. Step 4: Simplify right side
    209,001.87x = 32,739,191,167.58
  5. Step 5: Solve for x
    x = 32,739,191,167.58/209,001.87
  6. Step 6: Final answer
    x = 156,645.45

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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.