Home / 98,973.12-136,399.72-70,294.03

Finding the Fourth Proportional to 98,973.12, 136,399.72 and 70,294.03

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Solution

The fourth proportional to 98,973.12, 136,399.72 and 70,294.03 is: 96,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,973.12 : 136,399.72 = 70,294.03 : x
  2. Step 2: Convert to fraction form
    98,973.12/136,399.72 = 70,294.03/x
  3. Step 3: Cross multiply
    98,973.12x = 136,399.72 × 70,294.03
  4. Step 4: Simplify right side
    98,973.12x = 9,588,086,009.67
  5. Step 5: Solve for x
    x = 9,588,086,009.67/98,973.12
  6. Step 6: Final answer
    x = 96,875.66

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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.