Home / 147,141.93-203,062.55-86,715.12

Finding the Fourth Proportional to 147,141.93, 203,062.55 and 86,715.12

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Solution

The fourth proportional to 147,141.93, 203,062.55 and 86,715.12 is: 119,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,141.93 : 203,062.55 = 86,715.12 : x
  2. Step 2: Convert to fraction form
    147,141.93/203,062.55 = 86,715.12/x
  3. Step 3: Cross multiply
    147,141.93x = 203,062.55 × 86,715.12
  4. Step 4: Simplify right side
    147,141.93x = 17,608,592,957.18
  5. Step 5: Solve for x
    x = 17,608,592,957.18/147,141.93
  6. Step 6: Final answer
    x = 119,670.80

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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.