Home / 156,851.37-216,454.13-88,868.21

Finding the Fourth Proportional to 156,851.37, 216,454.13 and 88,868.21

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Solution

The fourth proportional to 156,851.37, 216,454.13 and 88,868.21 is: 122,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,851.37 : 216,454.13 = 88,868.21 : x
  2. Step 2: Convert to fraction form
    156,851.37/216,454.13 = 88,868.21/x
  3. Step 3: Cross multiply
    156,851.37x = 216,454.13 × 88,868.21
  4. Step 4: Simplify right side
    156,851.37x = 19,235,891,080.21
  5. Step 5: Solve for x
    x = 19,235,891,080.21/156,851.37
  6. Step 6: Final answer
    x = 122,637.70

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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.