Home / 127,239.36-175,587.60-70,649.76

Finding the Fourth Proportional to 127,239.36, 175,587.60 and 70,649.76

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Solution

The fourth proportional to 127,239.36, 175,587.60 and 70,649.76 is: 97,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,239.36 : 175,587.60 = 70,649.76 : x
  2. Step 2: Convert to fraction form
    127,239.36/175,587.60 = 70,649.76/x
  3. Step 3: Cross multiply
    127,239.36x = 175,587.60 × 70,649.76
  4. Step 4: Simplify right side
    127,239.36x = 12,405,221,798.98
  5. Step 5: Solve for x
    x = 12,405,221,798.98/127,239.36
  6. Step 6: Final answer
    x = 97,495.16

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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.