Home / 210,265.04-290,122.44-120,823.76

Finding the Fourth Proportional to 210,265.04, 290,122.44 and 120,823.76

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Solution

The fourth proportional to 210,265.04, 290,122.44 and 120,823.76 is: 166,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,265.04 : 290,122.44 = 120,823.76 : x
  2. Step 2: Convert to fraction form
    210,265.04/290,122.44 = 120,823.76/x
  3. Step 3: Cross multiply
    210,265.04x = 290,122.44 × 120,823.76
  4. Step 4: Simplify right side
    210,265.04x = 35,053,684,061.17
  5. Step 5: Solve for x
    x = 35,053,684,061.17/210,265.04
  6. Step 6: Final answer
    x = 166,711.90

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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.