Home / 153,429.50-211,732.74-89,779.52

Finding the Fourth Proportional to 153,429.50, 211,732.74 and 89,779.52

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Solution

The fourth proportional to 153,429.50, 211,732.74 and 89,779.52 is: 123,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,429.50 : 211,732.74 = 89,779.52 : x
  2. Step 2: Convert to fraction form
    153,429.50/211,732.74 = 89,779.52/x
  3. Step 3: Cross multiply
    153,429.50x = 211,732.74 × 89,779.52
  4. Step 4: Simplify right side
    153,429.50x = 19,009,263,765.48
  5. Step 5: Solve for x
    x = 19,009,263,765.48/153,429.50
  6. Step 6: Final answer
    x = 123,895.76

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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.