Home / 127,106.08-175,411.88-76,127.11

Finding the Fourth Proportional to 127,106.08, 175,411.88 and 76,127.11

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Solution

The fourth proportional to 127,106.08, 175,411.88 and 76,127.11 is: 105,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,106.08 : 175,411.88 = 76,127.11 : x
  2. Step 2: Convert to fraction form
    127,106.08/175,411.88 = 76,127.11/x
  3. Step 3: Cross multiply
    127,106.08x = 175,411.88 × 76,127.11
  4. Step 4: Simplify right side
    127,106.08x = 13,353,599,484.07
  5. Step 5: Solve for x
    x = 13,353,599,484.07/127,106.08
  6. Step 6: Final answer
    x = 105,058.70

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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.