Home / 162,038.48-223,624.40-90,419.69

Finding the Fourth Proportional to 162,038.48, 223,624.40 and 90,419.69

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Solution

The fourth proportional to 162,038.48, 223,624.40 and 90,419.69 is: 124,785.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,038.48 : 223,624.40 = 90,419.69 : x
  2. Step 2: Convert to fraction form
    162,038.48/223,624.40 = 90,419.69/x
  3. Step 3: Cross multiply
    162,038.48x = 223,624.40 × 90,419.69
  4. Step 4: Simplify right side
    162,038.48x = 20,220,049,031.40
  5. Step 5: Solve for x
    x = 20,220,049,031.40/162,038.48
  6. Step 6: Final answer
    x = 124,785.48

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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.