Home / 127,743.76-176,290.08-70,386.76

Finding the Fourth Proportional to 127,743.76, 176,290.08 and 70,386.76

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Solution

The fourth proportional to 127,743.76, 176,290.08 and 70,386.76 is: 97,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,743.76 : 176,290.08 = 70,386.76 : x
  2. Step 2: Convert to fraction form
    127,743.76/176,290.08 = 70,386.76/x
  3. Step 3: Cross multiply
    127,743.76x = 176,290.08 × 70,386.76
  4. Step 4: Simplify right side
    127,743.76x = 12,408,487,551.34
  5. Step 5: Solve for x
    x = 12,408,487,551.34/127,743.76
  6. Step 6: Final answer
    x = 97,135.76

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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.