Home / 153,461.29-211,809.26-103,131.13

Finding the Fourth Proportional to 153,461.29, 211,809.26 and 103,131.13

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Solution

The fourth proportional to 153,461.29, 211,809.26 and 103,131.13 is: 142,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,461.29 : 211,809.26 = 103,131.13 : x
  2. Step 2: Convert to fraction form
    153,461.29/211,809.26 = 103,131.13/x
  3. Step 3: Cross multiply
    153,461.29x = 211,809.26 × 103,131.13
  4. Step 4: Simplify right side
    153,461.29x = 21,844,128,328.26
  5. Step 5: Solve for x
    x = 21,844,128,328.26/153,461.29
  6. Step 6: Final answer
    x = 142,342.92

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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.