Home / 115,368.40-159,219.54-70,035.88

Finding the Fourth Proportional to 115,368.40, 159,219.54 and 70,035.88

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Solution

The fourth proportional to 115,368.40, 159,219.54 and 70,035.88 is: 96,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,368.40 : 159,219.54 = 70,035.88 : x
  2. Step 2: Convert to fraction form
    115,368.40/159,219.54 = 70,035.88/x
  3. Step 3: Cross multiply
    115,368.40x = 159,219.54 × 70,035.88
  4. Step 4: Simplify right side
    115,368.40x = 11,151,080,597.10
  5. Step 5: Solve for x
    x = 11,151,080,597.10/115,368.40
  6. Step 6: Final answer
    x = 96,656.28

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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.