Home / 127,787.51-176,347.98-70,428.92

Finding the Fourth Proportional to 127,787.51, 176,347.98 and 70,428.92

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Solution

The fourth proportional to 127,787.51, 176,347.98 and 70,428.92 is: 97,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,787.51 : 176,347.98 = 70,428.92 : x
  2. Step 2: Convert to fraction form
    127,787.51/176,347.98 = 70,428.92/x
  3. Step 3: Cross multiply
    127,787.51x = 176,347.98 × 70,428.92
  4. Step 4: Simplify right side
    127,787.51x = 12,419,996,893.84
  5. Step 5: Solve for x
    x = 12,419,996,893.84/127,787.51
  6. Step 6: Final answer
    x = 97,192.58

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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.