Home / 121,988.08-168,361.29-70,295.16

Finding the Fourth Proportional to 121,988.08, 168,361.29 and 70,295.16

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Solution

The fourth proportional to 121,988.08, 168,361.29 and 70,295.16 is: 97,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,988.08 : 168,361.29 = 70,295.16 : x
  2. Step 2: Convert to fraction form
    121,988.08/168,361.29 = 70,295.16/x
  3. Step 3: Cross multiply
    121,988.08x = 168,361.29 × 70,295.16
  4. Step 4: Simplify right side
    121,988.08x = 11,834,983,818.36
  5. Step 5: Solve for x
    x = 11,834,983,818.36/121,988.08
  6. Step 6: Final answer
    x = 97,017.55

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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.