Home / 155,001.12-213,846.56-101,317.12

Finding the Fourth Proportional to 155,001.12, 213,846.56 and 101,317.12

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Solution

The fourth proportional to 155,001.12, 213,846.56 and 101,317.12 is: 139,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,001.12 : 213,846.56 = 101,317.12 : x
  2. Step 2: Convert to fraction form
    155,001.12/213,846.56 = 101,317.12/x
  3. Step 3: Cross multiply
    155,001.12x = 213,846.56 × 101,317.12
  4. Step 4: Simplify right side
    155,001.12x = 21,666,317,581.11
  5. Step 5: Solve for x
    x = 21,666,317,581.11/155,001.12
  6. Step 6: Final answer
    x = 139,781.68

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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.