Home / 154,296.48-212,926.80-86,315.04

Finding the Fourth Proportional to 154,296.48, 212,926.80 and 86,315.04

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Solution

The fourth proportional to 154,296.48, 212,926.80 and 86,315.04 is: 119,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,296.48 : 212,926.80 = 86,315.04 : x
  2. Step 2: Convert to fraction form
    154,296.48/212,926.80 = 86,315.04/x
  3. Step 3: Cross multiply
    154,296.48x = 212,926.80 × 86,315.04
  4. Step 4: Simplify right side
    154,296.48x = 18,378,785,259.07
  5. Step 5: Solve for x
    x = 18,378,785,259.07/154,296.48
  6. Step 6: Final answer
    x = 119,113.44

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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.