Home / 156,689.27-216,244.58-88,718.22

Finding the Fourth Proportional to 156,689.27, 216,244.58 and 88,718.22

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Solution

The fourth proportional to 156,689.27, 216,244.58 and 88,718.22 is: 122,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,689.27 : 216,244.58 = 88,718.22 : x
  2. Step 2: Convert to fraction form
    156,689.27/216,244.58 = 88,718.22/x
  3. Step 3: Cross multiply
    156,689.27x = 216,244.58 × 88,718.22
  4. Step 4: Simplify right side
    156,689.27x = 19,184,834,222.25
  5. Step 5: Solve for x
    x = 19,184,834,222.25/156,689.27
  6. Step 6: Final answer
    x = 122,438.72

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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.