Home / 210,529.10-290,497.95-119,888.78

Finding the Fourth Proportional to 210,529.10, 290,497.95 and 119,888.78

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Solution

The fourth proportional to 210,529.10, 290,497.95 and 119,888.78 is: 165,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,529.10 : 290,497.95 = 119,888.78 : x
  2. Step 2: Convert to fraction form
    210,529.10/290,497.95 = 119,888.78/x
  3. Step 3: Cross multiply
    210,529.10x = 290,497.95 × 119,888.78
  4. Step 4: Simplify right side
    210,529.10x = 34,827,444,818.00
  5. Step 5: Solve for x
    x = 34,827,444,818.00/210,529.10
  6. Step 6: Final answer
    x = 165,428.18

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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.