Home / 121,835.04-168,167.96-70,859.68

Finding the Fourth Proportional to 121,835.04, 168,167.96 and 70,859.68

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Solution

The fourth proportional to 121,835.04, 168,167.96 and 70,859.68 is: 97,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,835.04 : 168,167.96 = 70,859.68 : x
  2. Step 2: Convert to fraction form
    121,835.04/168,167.96 = 70,859.68/x
  3. Step 3: Cross multiply
    121,835.04x = 168,167.96 × 70,859.68
  4. Step 4: Simplify right side
    121,835.04x = 11,916,327,831.85
  5. Step 5: Solve for x
    x = 11,916,327,831.85/121,835.04
  6. Step 6: Final answer
    x = 97,807.07

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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.