Home / 157,319.08-236,013.16-115,639.72

Finding the Fourth Proportional to 157,319.08, 236,013.16 and 115,639.72

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Solution

The fourth proportional to 157,319.08, 236,013.16 and 115,639.72 is: 173,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,319.08 : 236,013.16 = 115,639.72 : x
  2. Step 2: Convert to fraction form
    157,319.08/236,013.16 = 115,639.72/x
  3. Step 3: Cross multiply
    157,319.08x = 236,013.16 × 115,639.72
  4. Step 4: Simplify right side
    157,319.08x = 27,292,495,738.72
  5. Step 5: Solve for x
    x = 27,292,495,738.72/157,319.08
  6. Step 6: Final answer
    x = 173,484.97

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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.