Home / 153,117.29-211,301.67-85,132.13

Finding the Fourth Proportional to 153,117.29, 211,301.67 and 85,132.13

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Solution

The fourth proportional to 153,117.29, 211,301.67 and 85,132.13 is: 117,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,117.29 : 211,301.67 = 85,132.13 : x
  2. Step 2: Convert to fraction form
    153,117.29/211,301.67 = 85,132.13/x
  3. Step 3: Cross multiply
    153,117.29x = 211,301.67 × 85,132.13
  4. Step 4: Simplify right side
    153,117.29x = 17,988,561,239.66
  5. Step 5: Solve for x
    x = 17,988,561,239.66/153,117.29
  6. Step 6: Final answer
    x = 117,482.23

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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.