Home / 153,895.04-212,375.36-86,833.28

Finding the Fourth Proportional to 153,895.04, 212,375.36 and 86,833.28

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Solution

The fourth proportional to 153,895.04, 212,375.36 and 86,833.28 is: 119,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,895.04 : 212,375.36 = 86,833.28 : x
  2. Step 2: Convert to fraction form
    153,895.04/212,375.36 = 86,833.28/x
  3. Step 3: Cross multiply
    153,895.04x = 212,375.36 × 86,833.28
  4. Step 4: Simplify right side
    153,895.04x = 18,441,249,099.98
  5. Step 5: Solve for x
    x = 18,441,249,099.98/153,895.04
  6. Step 6: Final answer
    x = 119,830.04

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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.