Home / 191,200.15-286,541.88-72,806.92

Finding the Fourth Proportional to 191,200.15, 286,541.88 and 72,806.92

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Solution

The fourth proportional to 191,200.15, 286,541.88 and 72,806.92 is: 109,112.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,200.15 : 286,541.88 = 72,806.92 : x
  2. Step 2: Convert to fraction form
    191,200.15/286,541.88 = 72,806.92/x
  3. Step 3: Cross multiply
    191,200.15x = 286,541.88 × 72,806.92
  4. Step 4: Simplify right side
    191,200.15x = 20,862,231,733.81
  5. Step 5: Solve for x
    x = 20,862,231,733.81/191,200.15
  6. Step 6: Final answer
    x = 109,112.01

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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.