Home / 126,838.04-174,638.16-107,678.12

Finding the Fourth Proportional to 126,838.04, 174,638.16 and 107,678.12

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Solution

The fourth proportional to 126,838.04, 174,638.16 and 107,678.12 is: 148,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,838.04 : 174,638.16 = 107,678.12 : x
  2. Step 2: Convert to fraction form
    126,838.04/174,638.16 = 107,678.12/x
  3. Step 3: Cross multiply
    126,838.04x = 174,638.16 × 107,678.12
  4. Step 4: Simplify right side
    126,838.04x = 18,804,707,875.87
  5. Step 5: Solve for x
    x = 18,804,707,875.87/126,838.04
  6. Step 6: Final answer
    x = 148,257.64

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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.