Home / 154,010.07-212,533.35-89,488.71

Finding the Fourth Proportional to 154,010.07, 212,533.35 and 89,488.71

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Solution

The fourth proportional to 154,010.07, 212,533.35 and 89,488.71 is: 123,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,010.07 : 212,533.35 = 89,488.71 : x
  2. Step 2: Convert to fraction form
    154,010.07/212,533.35 = 89,488.71/x
  3. Step 3: Cross multiply
    154,010.07x = 212,533.35 × 89,488.71
  4. Step 4: Simplify right side
    154,010.07x = 19,019,335,323.48
  5. Step 5: Solve for x
    x = 19,019,335,323.48/154,010.07
  6. Step 6: Final answer
    x = 123,494.10

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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.