Home / 191,529.80-287,294.70-73,140.20

Finding the Fourth Proportional to 191,529.80, 287,294.70 and 73,140.20

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Solution

The fourth proportional to 191,529.80, 287,294.70 and 73,140.20 is: 109,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,529.80 : 287,294.70 = 73,140.20 : x
  2. Step 2: Convert to fraction form
    191,529.80/287,294.70 = 73,140.20/x
  3. Step 3: Cross multiply
    191,529.80x = 287,294.70 × 73,140.20
  4. Step 4: Simplify right side
    191,529.80x = 21,012,791,816.94
  5. Step 5: Solve for x
    x = 21,012,791,816.94/191,529.80
  6. Step 6: Final answer
    x = 109,710.30

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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.