Home / 211,082.18-291,344.66-130,461.15

Finding the Fourth Proportional to 211,082.18, 291,344.66 and 130,461.15

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Solution

The fourth proportional to 211,082.18, 291,344.66 and 130,461.15 is: 180,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,082.18 : 291,344.66 = 130,461.15 : x
  2. Step 2: Convert to fraction form
    211,082.18/291,344.66 = 130,461.15/x
  3. Step 3: Cross multiply
    211,082.18x = 291,344.66 × 130,461.15
  4. Step 4: Simplify right side
    211,082.18x = 38,009,158,737.65
  5. Step 5: Solve for x
    x = 38,009,158,737.65/211,082.18
  6. Step 6: Final answer
    x = 180,068.06

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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.