Home / 153,075.08-211,346.70-136,892.20

Finding the Fourth Proportional to 153,075.08, 211,346.70 and 136,892.20

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Solution

The fourth proportional to 153,075.08, 211,346.70 and 136,892.20 is: 189,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,075.08 : 211,346.70 = 136,892.20 : x
  2. Step 2: Convert to fraction form
    153,075.08/211,346.70 = 136,892.20/x
  3. Step 3: Cross multiply
    153,075.08x = 211,346.70 × 136,892.20
  4. Step 4: Simplify right side
    153,075.08x = 28,931,714,725.74
  5. Step 5: Solve for x
    x = 28,931,714,725.74/153,075.08
  6. Step 6: Final answer
    x = 189,003.43

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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.