Home / 153,999.36-212,321.52-126,302.40

Finding the Fourth Proportional to 153,999.36, 212,321.52 and 126,302.40

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Solution

The fourth proportional to 153,999.36, 212,321.52 and 126,302.40 is: 174,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,999.36 : 212,321.52 = 126,302.40 : x
  2. Step 2: Convert to fraction form
    153,999.36/212,321.52 = 126,302.40/x
  3. Step 3: Cross multiply
    153,999.36x = 212,321.52 × 126,302.40
  4. Step 4: Simplify right side
    153,999.36x = 26,816,717,547.65
  5. Step 5: Solve for x
    x = 26,816,717,547.65/153,999.36
  6. Step 6: Final answer
    x = 174,135.25

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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.