Home / 153,934.70-212,478.27-90,298.22

Finding the Fourth Proportional to 153,934.70, 212,478.27 and 90,298.22

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Solution

The fourth proportional to 153,934.70, 212,478.27 and 90,298.22 is: 124,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.70 : 212,478.27 = 90,298.22 : x
  2. Step 2: Convert to fraction form
    153,934.70/212,478.27 = 90,298.22/x
  3. Step 3: Cross multiply
    153,934.70x = 212,478.27 × 90,298.22
  4. Step 4: Simplify right side
    153,934.70x = 19,186,409,569.68
  5. Step 5: Solve for x
    x = 19,186,409,569.68/153,934.70
  6. Step 6: Final answer
    x = 124,639.93

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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.