Home / 191,929.20-287,526.60-103,153.20

Finding the Fourth Proportional to 191,929.20, 287,526.60 and 103,153.20

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Solution

The fourth proportional to 191,929.20, 287,526.60 and 103,153.20 is: 154,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.20 : 287,526.60 = 103,153.20 : x
  2. Step 2: Convert to fraction form
    191,929.20/287,526.60 = 103,153.20/x
  3. Step 3: Cross multiply
    191,929.20x = 287,526.60 × 103,153.20
  4. Step 4: Simplify right side
    191,929.20x = 29,659,288,875.12
  5. Step 5: Solve for x
    x = 29,659,288,875.12/191,929.20
  6. Step 6: Final answer
    x = 154,532.45

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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.