Home / 155,994.17-215,271.24-84,374.02

Finding the Fourth Proportional to 155,994.17, 215,271.24 and 84,374.02

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Solution

The fourth proportional to 155,994.17, 215,271.24 and 84,374.02 is: 116,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,994.17 : 215,271.24 = 84,374.02 : x
  2. Step 2: Convert to fraction form
    155,994.17/215,271.24 = 84,374.02/x
  3. Step 3: Cross multiply
    155,994.17x = 215,271.24 × 84,374.02
  4. Step 4: Simplify right side
    155,994.17x = 18,163,299,909.18
  5. Step 5: Solve for x
    x = 18,163,299,909.18/155,994.17
  6. Step 6: Final answer
    x = 116,435.76

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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.