Home / 109,579.40-151,244.75-64,271.98

Finding the Fourth Proportional to 109,579.40, 151,244.75 and 64,271.98

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Solution

The fourth proportional to 109,579.40, 151,244.75 and 64,271.98 is: 88,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,579.40 : 151,244.75 = 64,271.98 : x
  2. Step 2: Convert to fraction form
    109,579.40/151,244.75 = 64,271.98/x
  3. Step 3: Cross multiply
    109,579.40x = 151,244.75 × 64,271.98
  4. Step 4: Simplify right side
    109,579.40x = 9,720,799,896.84
  5. Step 5: Solve for x
    x = 9,720,799,896.84/109,579.40
  6. Step 6: Final answer
    x = 88,710.10

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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.