Home / 153,071.32-211,226.28-85,082.96

Finding the Fourth Proportional to 153,071.32, 211,226.28 and 85,082.96

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Solution

The fourth proportional to 153,071.32, 211,226.28 and 85,082.96 is: 117,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,071.32 : 211,226.28 = 85,082.96 : x
  2. Step 2: Convert to fraction form
    153,071.32/211,226.28 = 85,082.96/x
  3. Step 3: Cross multiply
    153,071.32x = 211,226.28 × 85,082.96
  4. Step 4: Simplify right side
    153,071.32x = 17,971,757,132.19
  5. Step 5: Solve for x
    x = 17,971,757,132.19/153,071.32
  6. Step 6: Final answer
    x = 117,407.74

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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.