Home / 153,792.37-212,233.62-90,130.24

Finding the Fourth Proportional to 153,792.37, 212,233.62 and 90,130.24

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Solution

The fourth proportional to 153,792.37, 212,233.62 and 90,130.24 is: 124,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,792.37 : 212,233.62 = 90,130.24 : x
  2. Step 2: Convert to fraction form
    153,792.37/212,233.62 = 90,130.24/x
  3. Step 3: Cross multiply
    153,792.37x = 212,233.62 × 90,130.24
  4. Step 4: Simplify right side
    153,792.37x = 19,128,667,106.67
  5. Step 5: Solve for x
    x = 19,128,667,106.67/153,792.37
  6. Step 6: Final answer
    x = 124,379.82

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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.