Home / 156,935.40-235,403.10-51,740.70

Finding the Fourth Proportional to 156,935.40, 235,403.10 and 51,740.70

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Solution

The fourth proportional to 156,935.40, 235,403.10 and 51,740.70 is: 77,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.40 : 235,403.10 = 51,740.70 : x
  2. Step 2: Convert to fraction form
    156,935.40/235,403.10 = 51,740.70/x
  3. Step 3: Cross multiply
    156,935.40x = 235,403.10 × 51,740.70
  4. Step 4: Simplify right side
    156,935.40x = 12,179,921,176.17
  5. Step 5: Solve for x
    x = 12,179,921,176.17/156,935.40
  6. Step 6: Final answer
    x = 77,611.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.