Home / 315,639.46-473,147.51-125,985.52

Finding the Fourth Proportional to 315,639.46, 473,147.51 and 125,985.52

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Solution

The fourth proportional to 315,639.46, 473,147.51 and 125,985.52 is: 188,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,639.46 : 473,147.51 = 125,985.52 : x
  2. Step 2: Convert to fraction form
    315,639.46/473,147.51 = 125,985.52/x
  3. Step 3: Cross multiply
    315,639.46x = 473,147.51 × 125,985.52
  4. Step 4: Simplify right side
    315,639.46x = 59,609,732,718.32
  5. Step 5: Solve for x
    x = 59,609,732,718.32/315,639.46
  6. Step 6: Final answer
    x = 188,853.87

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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.