Home / 127,130.40-175,448.28-73,417.68

Finding the Fourth Proportional to 127,130.40, 175,448.28 and 73,417.68

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Solution

The fourth proportional to 127,130.40, 175,448.28 and 73,417.68 is: 101,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.40 : 175,448.28 = 73,417.68 : x
  2. Step 2: Convert to fraction form
    127,130.40/175,448.28 = 73,417.68/x
  3. Step 3: Cross multiply
    127,130.40x = 175,448.28 × 73,417.68
  4. Step 4: Simplify right side
    127,130.40x = 12,881,005,677.59
  5. Step 5: Solve for x
    x = 12,881,005,677.59/127,130.40
  6. Step 6: Final answer
    x = 101,321.21

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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.