Home / 127,211.13-190,838.69-42,971.91

Finding the Fourth Proportional to 127,211.13, 190,838.69 and 42,971.91

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Solution

The fourth proportional to 127,211.13, 190,838.69 and 42,971.91 is: 64,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,211.13 : 190,838.69 = 42,971.91 : x
  2. Step 2: Convert to fraction form
    127,211.13/190,838.69 = 42,971.91/x
  3. Step 3: Cross multiply
    127,211.13x = 190,838.69 × 42,971.91
  4. Step 4: Simplify right side
    127,211.13x = 8,200,703,011.20
  5. Step 5: Solve for x
    x = 8,200,703,011.20/127,211.13
  6. Step 6: Final answer
    x = 64,465.29

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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.