Home / 147,141.50-203,077.14-86,692.82

Finding the Fourth Proportional to 147,141.50, 203,077.14 and 86,692.82

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Solution

The fourth proportional to 147,141.50, 203,077.14 and 86,692.82 is: 119,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,141.50 : 203,077.14 = 86,692.82 : x
  2. Step 2: Convert to fraction form
    147,141.50/203,077.14 = 86,692.82/x
  3. Step 3: Cross multiply
    147,141.50x = 203,077.14 × 86,692.82
  4. Step 4: Simplify right side
    147,141.50x = 17,605,329,944.13
  5. Step 5: Solve for x
    x = 17,605,329,944.13/147,141.50
  6. Step 6: Final answer
    x = 119,648.98

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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.