Home / 191,132.40-286,612.20-85,897.20

Finding the Fourth Proportional to 191,132.40, 286,612.20 and 85,897.20

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Solution

The fourth proportional to 191,132.40, 286,612.20 and 85,897.20 is: 128,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,132.40 : 286,612.20 = 85,897.20 : x
  2. Step 2: Convert to fraction form
    191,132.40/286,612.20 = 85,897.20/x
  3. Step 3: Cross multiply
    191,132.40x = 286,612.20 × 85,897.20
  4. Step 4: Simplify right side
    191,132.40x = 24,619,185,465.84
  5. Step 5: Solve for x
    x = 24,619,185,465.84/191,132.40
  6. Step 6: Final answer
    x = 128,806.97

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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.