Home / 150,715.74-208,009.35-90,288.93

Finding the Fourth Proportional to 150,715.74, 208,009.35 and 90,288.93

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Solution

The fourth proportional to 150,715.74, 208,009.35 and 90,288.93 is: 124,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,715.74 : 208,009.35 = 90,288.93 : x
  2. Step 2: Convert to fraction form
    150,715.74/208,009.35 = 90,288.93/x
  3. Step 3: Cross multiply
    150,715.74x = 208,009.35 × 90,288.93
  4. Step 4: Simplify right side
    150,715.74x = 18,780,941,641.50
  5. Step 5: Solve for x
    x = 18,780,941,641.50/150,715.74
  6. Step 6: Final answer
    x = 124,611.68

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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.