Home / 127,154.96-175,455.90-76,155.74

Finding the Fourth Proportional to 127,154.96, 175,455.90 and 76,155.74

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Solution

The fourth proportional to 127,154.96, 175,455.90 and 76,155.74 is: 105,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,154.96 : 175,455.90 = 76,155.74 : x
  2. Step 2: Convert to fraction form
    127,154.96/175,455.90 = 76,155.74/x
  3. Step 3: Cross multiply
    127,154.96x = 175,455.90 × 76,155.74
  4. Step 4: Simplify right side
    127,154.96x = 13,361,973,901.87
  5. Step 5: Solve for x
    x = 13,361,973,901.87/127,154.96
  6. Step 6: Final answer
    x = 105,084.17

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1.5x scale

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.