Home / 105,251.65-145,206.02-64,895.33

Finding the Fourth Proportional to 105,251.65, 145,206.02 and 64,895.33

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Solution

The fourth proportional to 105,251.65, 145,206.02 and 64,895.33 is: 89,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,251.65 : 145,206.02 = 64,895.33 : x
  2. Step 2: Convert to fraction form
    105,251.65/145,206.02 = 64,895.33/x
  3. Step 3: Cross multiply
    105,251.65x = 145,206.02 × 64,895.33
  4. Step 4: Simplify right side
    105,251.65x = 9,423,191,929.32
  5. Step 5: Solve for x
    x = 9,423,191,929.32/105,251.65
  6. Step 6: Final answer
    x = 89,530.11

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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.