Home / 141,816.80-212,444.40-91,931.60

Finding the Fourth Proportional to 141,816.80, 212,444.40 and 91,931.60

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Solution

The fourth proportional to 141,816.80, 212,444.40 and 91,931.60 is: 137,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.80 : 212,444.40 = 91,931.60 : x
  2. Step 2: Convert to fraction form
    141,816.80/212,444.40 = 91,931.60/x
  3. Step 3: Cross multiply
    141,816.80x = 212,444.40 × 91,931.60
  4. Step 4: Simplify right side
    141,816.80x = 19,530,353,603.04
  5. Step 5: Solve for x
    x = 19,530,353,603.04/141,816.80
  6. Step 6: Final answer
    x = 137,715.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.