Home / 127,448.32-175,812.36-76,436.52

Finding the Fourth Proportional to 127,448.32, 175,812.36 and 76,436.52

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Solution

The fourth proportional to 127,448.32, 175,812.36 and 76,436.52 is: 105,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,448.32 : 175,812.36 = 76,436.52 : x
  2. Step 2: Convert to fraction form
    127,448.32/175,812.36 = 76,436.52/x
  3. Step 3: Cross multiply
    127,448.32x = 175,812.36 × 76,436.52
  4. Step 4: Simplify right side
    127,448.32x = 13,438,484,971.39
  5. Step 5: Solve for x
    x = 13,438,484,971.39/127,448.32
  6. Step 6: Final answer
    x = 105,442.62

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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.