Home / 127,237.80-190,703.10-64,876.20

Finding the Fourth Proportional to 127,237.80, 190,703.10 and 64,876.20

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Solution

The fourth proportional to 127,237.80, 190,703.10 and 64,876.20 is: 97,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,237.80 : 190,703.10 = 64,876.20 : x
  2. Step 2: Convert to fraction form
    127,237.80/190,703.10 = 64,876.20/x
  3. Step 3: Cross multiply
    127,237.80x = 190,703.10 × 64,876.20
  4. Step 4: Simplify right side
    127,237.80x = 12,372,092,456.22
  5. Step 5: Solve for x
    x = 12,372,092,456.22/127,237.80
  6. Step 6: Final answer
    x = 97,235.98

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1.5x scale

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.