Home / 147,715.70-221,314.35-121,277.30

Finding the Fourth Proportional to 147,715.70, 221,314.35 and 121,277.30

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Solution

The fourth proportional to 147,715.70, 221,314.35 and 121,277.30 is: 181,703.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,715.70 : 221,314.35 = 121,277.30 : x
  2. Step 2: Convert to fraction form
    147,715.70/221,314.35 = 121,277.30/x
  3. Step 3: Cross multiply
    147,715.70x = 221,314.35 × 121,277.30
  4. Step 4: Simplify right side
    147,715.70x = 26,840,406,819.26
  5. Step 5: Solve for x
    x = 26,840,406,819.26/147,715.70
  6. Step 6: Final answer
    x = 181,703.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.