Home / 156,953.16-216,597.18-85,331.60

Finding the Fourth Proportional to 156,953.16, 216,597.18 and 85,331.60

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Solution

The fourth proportional to 156,953.16, 216,597.18 and 85,331.60 is: 117,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,953.16 : 216,597.18 = 85,331.60 : x
  2. Step 2: Convert to fraction form
    156,953.16/216,597.18 = 85,331.60/x
  3. Step 3: Cross multiply
    156,953.16x = 216,597.18 × 85,331.60
  4. Step 4: Simplify right side
    156,953.16x = 18,482,583,924.89
  5. Step 5: Solve for x
    x = 18,482,583,924.89/156,953.16
  6. Step 6: Final answer
    x = 117,758.60

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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.