Home / 127,123.75-175,430.64-69,763.40

Finding the Fourth Proportional to 127,123.75, 175,430.64 and 69,763.40

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Solution

The fourth proportional to 127,123.75, 175,430.64 and 69,763.40 is: 96,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,123.75 : 175,430.64 = 69,763.40 : x
  2. Step 2: Convert to fraction form
    127,123.75/175,430.64 = 69,763.40/x
  3. Step 3: Cross multiply
    127,123.75x = 175,430.64 × 69,763.40
  4. Step 4: Simplify right side
    127,123.75x = 12,238,637,910.58
  5. Step 5: Solve for x
    x = 12,238,637,910.58/127,123.75
  6. Step 6: Final answer
    x = 96,273.42

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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.