Home / 153,842.39-212,313.15-85,872.62

Finding the Fourth Proportional to 153,842.39, 212,313.15 and 85,872.62

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Solution

The fourth proportional to 153,842.39, 212,313.15 and 85,872.62 is: 118,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,842.39 : 212,313.15 = 85,872.62 : x
  2. Step 2: Convert to fraction form
    153,842.39/212,313.15 = 85,872.62/x
  3. Step 3: Cross multiply
    153,842.39x = 212,313.15 × 85,872.62
  4. Step 4: Simplify right side
    153,842.39x = 18,231,885,389.39
  5. Step 5: Solve for x
    x = 18,231,885,389.39/153,842.39
  6. Step 6: Final answer
    x = 118,510.16

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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.