Home / 157,127.76-216,833.28-85,509.36

Finding the Fourth Proportional to 157,127.76, 216,833.28 and 85,509.36

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Solution

The fourth proportional to 157,127.76, 216,833.28 and 85,509.36 is: 118,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,127.76 : 216,833.28 = 85,509.36 : x
  2. Step 2: Convert to fraction form
    157,127.76/216,833.28 = 85,509.36/x
  3. Step 3: Cross multiply
    157,127.76x = 216,833.28 × 85,509.36
  4. Step 4: Simplify right side
    157,127.76x = 18,541,274,999.50
  5. Step 5: Solve for x
    x = 18,541,274,999.50/157,127.76
  6. Step 6: Final answer
    x = 118,001.27

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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.