Home / 191,527.40-287,420.70-86,292.20

Finding the Fourth Proportional to 191,527.40, 287,420.70 and 86,292.20

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Solution

The fourth proportional to 191,527.40, 287,420.70 and 86,292.20 is: 129,496.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,527.40 : 287,420.70 = 86,292.20 : x
  2. Step 2: Convert to fraction form
    191,527.40/287,420.70 = 86,292.20/x
  3. Step 3: Cross multiply
    191,527.40x = 287,420.70 × 86,292.20
  4. Step 4: Simplify right side
    191,527.40x = 24,802,164,528.54
  5. Step 5: Solve for x
    x = 24,802,164,528.54/191,527.40
  6. Step 6: Final answer
    x = 129,496.69

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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.