Home / 261,567.06-392,078.43-121,210.26

Finding the Fourth Proportional to 261,567.06, 392,078.43 and 121,210.26

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Solution

The fourth proportional to 261,567.06, 392,078.43 and 121,210.26 is: 181,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,567.06 : 392,078.43 = 121,210.26 : x
  2. Step 2: Convert to fraction form
    261,567.06/392,078.43 = 121,210.26/x
  3. Step 3: Cross multiply
    261,567.06x = 392,078.43 × 121,210.26
  4. Step 4: Simplify right side
    261,567.06x = 47,523,928,440.69
  5. Step 5: Solve for x
    x = 47,523,928,440.69/261,567.06
  6. Step 6: Final answer
    x = 181,689.27

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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.