Home / 156,903.16-216,525.55-85,283.57

Finding the Fourth Proportional to 156,903.16, 216,525.55 and 85,283.57

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Solution

The fourth proportional to 156,903.16, 216,525.55 and 85,283.57 is: 117,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.16 : 216,525.55 = 85,283.57 : x
  2. Step 2: Convert to fraction form
    156,903.16/216,525.55 = 85,283.57/x
  3. Step 3: Cross multiply
    156,903.16x = 216,525.55 × 85,283.57
  4. Step 4: Simplify right side
    156,903.16x = 18,466,070,391.17
  5. Step 5: Solve for x
    x = 18,466,070,391.17/156,903.16
  6. Step 6: Final answer
    x = 117,690.88

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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.