Home / 212,910.10-293,851.05-128,073.94

Finding the Fourth Proportional to 212,910.10, 293,851.05 and 128,073.94

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Solution

The fourth proportional to 212,910.10, 293,851.05 and 128,073.94 is: 176,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,910.10 : 293,851.05 = 128,073.94 : x
  2. Step 2: Convert to fraction form
    212,910.10/293,851.05 = 128,073.94/x
  3. Step 3: Cross multiply
    212,910.10x = 293,851.05 × 128,073.94
  4. Step 4: Simplify right side
    212,910.10x = 37,634,661,746.64
  5. Step 5: Solve for x
    x = 37,634,661,746.64/212,910.10
  6. Step 6: Final answer
    x = 176,763.16

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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.