Home / 127,264.80-190,508.40-99,271.20

Finding the Fourth Proportional to 127,264.80, 190,508.40 and 99,271.20

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Solution

The fourth proportional to 127,264.80, 190,508.40 and 99,271.20 is: 148,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,264.80 : 190,508.40 = 99,271.20 : x
  2. Step 2: Convert to fraction form
    127,264.80/190,508.40 = 99,271.20/x
  3. Step 3: Cross multiply
    127,264.80x = 190,508.40 × 99,271.20
  4. Step 4: Simplify right side
    127,264.80x = 18,911,997,478.08
  5. Step 5: Solve for x
    x = 18,911,997,478.08/127,264.80
  6. Step 6: Final answer
    x = 148,603.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.