Home / 145,680.39-201,038.76-82,038.69

Finding the Fourth Proportional to 145,680.39, 201,038.76 and 82,038.69

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Solution

The fourth proportional to 145,680.39, 201,038.76 and 82,038.69 is: 113,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,680.39 : 201,038.76 = 82,038.69 : x
  2. Step 2: Convert to fraction form
    145,680.39/201,038.76 = 82,038.69/x
  3. Step 3: Cross multiply
    145,680.39x = 201,038.76 × 82,038.69
  4. Step 4: Simplify right side
    145,680.39x = 16,492,956,509.62
  5. Step 5: Solve for x
    x = 16,492,956,509.62/145,680.39
  6. Step 6: Final answer
    x = 113,213.29

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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.