Home / 212,479.50-293,133.86-126,421.28

Finding the Fourth Proportional to 212,479.50, 293,133.86 and 126,421.28

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Solution

The fourth proportional to 212,479.50, 293,133.86 and 126,421.28 is: 174,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,479.50 : 293,133.86 = 126,421.28 : x
  2. Step 2: Convert to fraction form
    212,479.50/293,133.86 = 126,421.28/x
  3. Step 3: Cross multiply
    212,479.50x = 293,133.86 × 126,421.28
  4. Step 4: Simplify right side
    212,479.50x = 37,058,358,448.10
  5. Step 5: Solve for x
    x = 37,058,358,448.10/212,479.50
  6. Step 6: Final answer
    x = 174,409.10

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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.