Home / 117,754.81-162,500.09-64,038.69

Finding the Fourth Proportional to 117,754.81, 162,500.09 and 64,038.69

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Solution

The fourth proportional to 117,754.81, 162,500.09 and 64,038.69 is: 88,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,754.81 : 162,500.09 = 64,038.69 : x
  2. Step 2: Convert to fraction form
    117,754.81/162,500.09 = 64,038.69/x
  3. Step 3: Cross multiply
    117,754.81x = 162,500.09 × 64,038.69
  4. Step 4: Simplify right side
    117,754.81x = 10,406,292,888.48
  5. Step 5: Solve for x
    x = 10,406,292,888.48/117,754.81
  6. Step 6: Final answer
    x = 88,372.55

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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.