Home / 127,145.10-190,717.65-124,812.30

Finding the Fourth Proportional to 127,145.10, 190,717.65 and 124,812.30

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Solution

The fourth proportional to 127,145.10, 190,717.65 and 124,812.30 is: 187,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,145.10 : 190,717.65 = 124,812.30 : x
  2. Step 2: Convert to fraction form
    127,145.10/190,717.65 = 124,812.30/x
  3. Step 3: Cross multiply
    127,145.10x = 190,717.65 × 124,812.30
  4. Step 4: Simplify right side
    127,145.10x = 23,803,908,547.10
  5. Step 5: Solve for x
    x = 23,803,908,547.10/127,145.10
  6. Step 6: Final answer
    x = 187,218.45

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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.