Home / 210,644.51-290,691.36-119,999.13

Finding the Fourth Proportional to 210,644.51, 290,691.36 and 119,999.13

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Solution

The fourth proportional to 210,644.51, 290,691.36 and 119,999.13 is: 165,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,644.51 : 290,691.36 = 119,999.13 : x
  2. Step 2: Convert to fraction form
    210,644.51/290,691.36 = 119,999.13/x
  3. Step 3: Cross multiply
    210,644.51x = 290,691.36 × 119,999.13
  4. Step 4: Simplify right side
    210,644.51x = 34,882,710,298.52
  5. Step 5: Solve for x
    x = 34,882,710,298.52/210,644.51
  6. Step 6: Final answer
    x = 165,599.91

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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.