Home / 121,831.04-168,162.44-70,855.68

Finding the Fourth Proportional to 121,831.04, 168,162.44 and 70,855.68

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Solution

The fourth proportional to 121,831.04, 168,162.44 and 70,855.68 is: 97,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,831.04 : 168,162.44 = 70,855.68 : x
  2. Step 2: Convert to fraction form
    121,831.04/168,162.44 = 70,855.68/x
  3. Step 3: Cross multiply
    121,831.04x = 168,162.44 × 70,855.68
  4. Step 4: Simplify right side
    121,831.04x = 11,915,264,036.66
  5. Step 5: Solve for x
    x = 11,915,264,036.66/121,831.04
  6. Step 6: Final answer
    x = 97,801.55

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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.