Home / 127,291.72-175,667-70,708.36

Finding the Fourth Proportional to 127,291.72, 175,667 and 70,708.36

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Solution

The fourth proportional to 127,291.72, 175,667 and 70,708.36 is: 97,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,291.72 : 175,667 = 70,708.36 : x
  2. Step 2: Convert to fraction form
    127,291.72/175,667 = 70,708.36/x
  3. Step 3: Cross multiply
    127,291.72x = 175,667 × 70,708.36
  4. Step 4: Simplify right side
    127,291.72x = 12,421,125,476.12
  5. Step 5: Solve for x
    x = 12,421,125,476.12/127,291.72
  6. Step 6: Final answer
    x = 97,580.00

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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.