Home / 157,981.86-217,985.18-93,461.72

Finding the Fourth Proportional to 157,981.86, 217,985.18 and 93,461.72

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Solution

The fourth proportional to 157,981.86, 217,985.18 and 93,461.72 is: 128,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,981.86 : 217,985.18 = 93,461.72 : x
  2. Step 2: Convert to fraction form
    157,981.86/217,985.18 = 93,461.72/x
  3. Step 3: Cross multiply
    157,981.86x = 217,985.18 × 93,461.72
  4. Step 4: Simplify right side
    157,981.86x = 20,373,268,300.08
  5. Step 5: Solve for x
    x = 20,373,268,300.08/157,981.86
  6. Step 6: Final answer
    x = 128,959.54

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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.