Home / 145,535.58-218,043.65-78,933.23

Finding the Fourth Proportional to 145,535.58, 218,043.65 and 78,933.23

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Solution

The fourth proportional to 145,535.58, 218,043.65 and 78,933.23 is: 118,258.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,535.58 : 218,043.65 = 78,933.23 : x
  2. Step 2: Convert to fraction form
    145,535.58/218,043.65 = 78,933.23/x
  3. Step 3: Cross multiply
    145,535.58x = 218,043.65 × 78,933.23
  4. Step 4: Simplify right side
    145,535.58x = 17,210,889,575.49
  5. Step 5: Solve for x
    x = 17,210,889,575.49/145,535.58
  6. Step 6: Final answer
    x = 118,258.98

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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.