Home / 117,855.30-162,637.19-64,139.16

Finding the Fourth Proportional to 117,855.30, 162,637.19 and 64,139.16

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Solution

The fourth proportional to 117,855.30, 162,637.19 and 64,139.16 is: 88,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.30 : 162,637.19 = 64,139.16 : x
  2. Step 2: Convert to fraction form
    117,855.30/162,637.19 = 64,139.16/x
  3. Step 3: Cross multiply
    117,855.30x = 162,637.19 × 64,139.16
  4. Step 4: Simplify right side
    117,855.30x = 10,431,412,751.36
  5. Step 5: Solve for x
    x = 10,431,412,751.36/117,855.30
  6. Step 6: Final answer
    x = 88,510.34

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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.