Home / 124,831.40-172,254.98-71,113.22

Finding the Fourth Proportional to 124,831.40, 172,254.98 and 71,113.22

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Solution

The fourth proportional to 124,831.40, 172,254.98 and 71,113.22 is: 98,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,831.40 : 172,254.98 = 71,113.22 : x
  2. Step 2: Convert to fraction form
    124,831.40/172,254.98 = 71,113.22/x
  3. Step 3: Cross multiply
    124,831.40x = 172,254.98 × 71,113.22
  4. Step 4: Simplify right side
    124,831.40x = 12,249,606,288.84
  5. Step 5: Solve for x
    x = 12,249,606,288.84/124,831.40
  6. Step 6: Final answer
    x = 98,129.21

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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.