Home / 115,298.65-172,981.47-47,818.31

Finding the Fourth Proportional to 115,298.65, 172,981.47 and 47,818.31

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Solution

The fourth proportional to 115,298.65, 172,981.47 and 47,818.31 is: 71,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,298.65 : 172,981.47 = 47,818.31 : x
  2. Step 2: Convert to fraction form
    115,298.65/172,981.47 = 47,818.31/x
  3. Step 3: Cross multiply
    115,298.65x = 172,981.47 × 47,818.31
  4. Step 4: Simplify right side
    115,298.65x = 8,271,681,317.62
  5. Step 5: Solve for x
    x = 8,271,681,317.62/115,298.65
  6. Step 6: Final answer
    x = 71,741.35

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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.