Home / 153,118.06-211,312.50-85,150.24

Finding the Fourth Proportional to 153,118.06, 211,312.50 and 85,150.24

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Solution

The fourth proportional to 153,118.06, 211,312.50 and 85,150.24 is: 117,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,118.06 : 211,312.50 = 85,150.24 : x
  2. Step 2: Convert to fraction form
    153,118.06/211,312.50 = 85,150.24/x
  3. Step 3: Cross multiply
    153,118.06x = 211,312.50 × 85,150.24
  4. Step 4: Simplify right side
    153,118.06x = 17,993,310,090
  5. Step 5: Solve for x
    x = 17,993,310,090/153,118.06
  6. Step 6: Final answer
    x = 117,512.66

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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.