Home / 127,389.51-175,799.76-70,031.25

Finding the Fourth Proportional to 127,389.51, 175,799.76 and 70,031.25

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Solution

The fourth proportional to 127,389.51, 175,799.76 and 70,031.25 is: 96,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,389.51 : 175,799.76 = 70,031.25 : x
  2. Step 2: Convert to fraction form
    127,389.51/175,799.76 = 70,031.25/x
  3. Step 3: Cross multiply
    127,389.51x = 175,799.76 × 70,031.25
  4. Step 4: Simplify right side
    127,389.51x = 12,311,476,942.50
  5. Step 5: Solve for x
    x = 12,311,476,942.50/127,389.51
  6. Step 6: Final answer
    x = 96,644.35

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1.5x scale

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.