Home / 127,085.79-175,386.60-70,497.21

Finding the Fourth Proportional to 127,085.79, 175,386.60 and 70,497.21

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Solution

The fourth proportional to 127,085.79, 175,386.60 and 70,497.21 is: 97,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,085.79 : 175,386.60 = 70,497.21 : x
  2. Step 2: Convert to fraction form
    127,085.79/175,386.60 = 70,497.21/x
  3. Step 3: Cross multiply
    127,085.79x = 175,386.60 × 70,497.21
  4. Step 4: Simplify right side
    127,085.79x = 12,364,265,971.39
  5. Step 5: Solve for x
    x = 12,364,265,971.39/127,085.79
  6. Step 6: Final answer
    x = 97,290.70

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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.