Home / 191,200.12-286,800.18-91,056.72

Finding the Fourth Proportional to 191,200.12, 286,800.18 and 91,056.72

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Solution

The fourth proportional to 191,200.12, 286,800.18 and 91,056.72 is: 136,585.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,200.12 : 286,800.18 = 91,056.72 : x
  2. Step 2: Convert to fraction form
    191,200.12/286,800.18 = 91,056.72/x
  3. Step 3: Cross multiply
    191,200.12x = 286,800.18 × 91,056.72
  4. Step 4: Simplify right side
    191,200.12x = 26,115,083,686.21
  5. Step 5: Solve for x
    x = 26,115,083,686.21/191,200.12
  6. Step 6: Final answer
    x = 136,585.08

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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.