Home / 119,856.36-165,417.66-72,136.20

Finding the Fourth Proportional to 119,856.36, 165,417.66 and 72,136.20

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Solution

The fourth proportional to 119,856.36, 165,417.66 and 72,136.20 is: 99,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,856.36 : 165,417.66 = 72,136.20 : x
  2. Step 2: Convert to fraction form
    119,856.36/165,417.66 = 72,136.20/x
  3. Step 3: Cross multiply
    119,856.36x = 165,417.66 × 72,136.20
  4. Step 4: Simplify right side
    119,856.36x = 11,932,601,405.29
  5. Step 5: Solve for x
    x = 11,932,601,405.29/119,856.36
  6. Step 6: Final answer
    x = 99,557.52

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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.