Home / 127,801.16-176,365-70,440.36

Finding the Fourth Proportional to 127,801.16, 176,365 and 70,440.36

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Solution

The fourth proportional to 127,801.16, 176,365 and 70,440.36 is: 97,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,801.16 : 176,365 = 70,440.36 : x
  2. Step 2: Convert to fraction form
    127,801.16/176,365 = 70,440.36/x
  3. Step 3: Cross multiply
    127,801.16x = 176,365 × 70,440.36
  4. Step 4: Simplify right side
    127,801.16x = 12,423,214,091.40
  5. Step 5: Solve for x
    x = 12,423,214,091.40/127,801.16
  6. Step 6: Final answer
    x = 97,207.37

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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.