Home / 111,031.03-153,272.85-70,798.87

Finding the Fourth Proportional to 111,031.03, 153,272.85 and 70,798.87

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Solution

The fourth proportional to 111,031.03, 153,272.85 and 70,798.87 is: 97,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,031.03 : 153,272.85 = 70,798.87 : x
  2. Step 2: Convert to fraction form
    111,031.03/153,272.85 = 70,798.87/x
  3. Step 3: Cross multiply
    111,031.03x = 153,272.85 × 70,798.87
  4. Step 4: Simplify right side
    111,031.03x = 10,851,543,992.31
  5. Step 5: Solve for x
    x = 10,851,543,992.31/111,031.03
  6. Step 6: Final answer
    x = 97,734.34

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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.