Home / 153,808.24-212,255.40-86,740.24

Finding the Fourth Proportional to 153,808.24, 212,255.40 and 86,740.24

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Solution

The fourth proportional to 153,808.24, 212,255.40 and 86,740.24 is: 119,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,808.24 : 212,255.40 = 86,740.24 : x
  2. Step 2: Convert to fraction form
    153,808.24/212,255.40 = 86,740.24/x
  3. Step 3: Cross multiply
    153,808.24x = 212,255.40 × 86,740.24
  4. Step 4: Simplify right side
    153,808.24x = 18,411,084,337.30
  5. Step 5: Solve for x
    x = 18,411,084,337.30/153,808.24
  6. Step 6: Final answer
    x = 119,701.55

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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.