Home / 155,045.72-232,581.34-66,300

Finding the Fourth Proportional to 155,045.72, 232,581.34 and 66,300

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Solution

The fourth proportional to 155,045.72, 232,581.34 and 66,300 is: 99,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,045.72 : 232,581.34 = 66,300 : x
  2. Step 2: Convert to fraction form
    155,045.72/232,581.34 = 66,300/x
  3. Step 3: Cross multiply
    155,045.72x = 232,581.34 × 66,300
  4. Step 4: Simplify right side
    155,045.72x = 15,420,142,842
  5. Step 5: Solve for x
    x = 15,420,142,842/155,045.72
  6. Step 6: Final answer
    x = 99,455.46

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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.