Home / 155,411.02-214,479.65-87,423.94

Finding the Fourth Proportional to 155,411.02, 214,479.65 and 87,423.94

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Solution

The fourth proportional to 155,411.02, 214,479.65 and 87,423.94 is: 120,652.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,411.02 : 214,479.65 = 87,423.94 : x
  2. Step 2: Convert to fraction form
    155,411.02/214,479.65 = 87,423.94/x
  3. Step 3: Cross multiply
    155,411.02x = 214,479.65 × 87,423.94
  4. Step 4: Simplify right side
    155,411.02x = 18,750,656,052.82
  5. Step 5: Solve for x
    x = 18,750,656,052.82/155,411.02
  6. Step 6: Final answer
    x = 120,652.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.