Home / 127,079.10-190,618.65-69,998.40

Finding the Fourth Proportional to 127,079.10, 190,618.65 and 69,998.40

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Solution

The fourth proportional to 127,079.10, 190,618.65 and 69,998.40 is: 104,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,079.10 : 190,618.65 = 69,998.40 : x
  2. Step 2: Convert to fraction form
    127,079.10/190,618.65 = 69,998.40/x
  3. Step 3: Cross multiply
    127,079.10x = 190,618.65 × 69,998.40
  4. Step 4: Simplify right side
    127,079.10x = 13,343,000,510.16
  5. Step 5: Solve for x
    x = 13,343,000,510.16/127,079.10
  6. Step 6: Final answer
    x = 104,997.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.