Home / 153,118.95-211,300.21-85,132.41

Finding the Fourth Proportional to 153,118.95, 211,300.21 and 85,132.41

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Solution

The fourth proportional to 153,118.95, 211,300.21 and 85,132.41 is: 117,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,118.95 : 211,300.21 = 85,132.41 : x
  2. Step 2: Convert to fraction form
    153,118.95/211,300.21 = 85,132.41/x
  3. Step 3: Cross multiply
    153,118.95x = 211,300.21 × 85,132.41
  4. Step 4: Simplify right side
    153,118.95x = 17,988,496,110.81
  5. Step 5: Solve for x
    x = 17,988,496,110.81/153,118.95
  6. Step 6: Final answer
    x = 117,480.53

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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.