Home / 153,040.86-210,679.38-126,140.76

Finding the Fourth Proportional to 153,040.86, 210,679.38 and 126,140.76

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Solution

The fourth proportional to 153,040.86, 210,679.38 and 126,140.76 is: 173,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,040.86 : 210,679.38 = 126,140.76 : x
  2. Step 2: Convert to fraction form
    153,040.86/210,679.38 = 126,140.76/x
  3. Step 3: Cross multiply
    153,040.86x = 210,679.38 × 126,140.76
  4. Step 4: Simplify right side
    153,040.86x = 26,575,257,109.53
  5. Step 5: Solve for x
    x = 26,575,257,109.53/153,040.86
  6. Step 6: Final answer
    x = 173,648.12

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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.