Home / 105,048.75-144,925.95-64,692.45

Finding the Fourth Proportional to 105,048.75, 144,925.95 and 64,692.45

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Solution

The fourth proportional to 105,048.75, 144,925.95 and 64,692.45 is: 89,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,048.75 : 144,925.95 = 64,692.45 : x
  2. Step 2: Convert to fraction form
    105,048.75/144,925.95 = 64,692.45/x
  3. Step 3: Cross multiply
    105,048.75x = 144,925.95 × 64,692.45
  4. Step 4: Simplify right side
    105,048.75x = 9,375,614,774.08
  5. Step 5: Solve for x
    x = 9,375,614,774.08/105,048.75
  6. Step 6: Final answer
    x = 89,250.13

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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.