Home / 261,054.13-391,389.67-83,458.93

Finding the Fourth Proportional to 261,054.13, 391,389.67 and 83,458.93

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Solution

The fourth proportional to 261,054.13, 391,389.67 and 83,458.93 is: 125,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,054.13 : 391,389.67 = 83,458.93 : x
  2. Step 2: Convert to fraction form
    261,054.13/391,389.67 = 83,458.93/x
  3. Step 3: Cross multiply
    261,054.13x = 391,389.67 × 83,458.93
  4. Step 4: Simplify right side
    261,054.13x = 32,664,963,071.25
  5. Step 5: Solve for x
    x = 32,664,963,071.25/261,054.13
  6. Step 6: Final answer
    x = 125,127.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.