Home / 153,588.12-211,925.90-85,590.18

Finding the Fourth Proportional to 153,588.12, 211,925.90 and 85,590.18

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Solution

The fourth proportional to 153,588.12, 211,925.90 and 85,590.18 is: 118,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,588.12 : 211,925.90 = 85,590.18 : x
  2. Step 2: Convert to fraction form
    153,588.12/211,925.90 = 85,590.18/x
  3. Step 3: Cross multiply
    153,588.12x = 211,925.90 × 85,590.18
  4. Step 4: Simplify right side
    153,588.12x = 18,138,775,927.66
  5. Step 5: Solve for x
    x = 18,138,775,927.66/153,588.12
  6. Step 6: Final answer
    x = 118,100.12

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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.