Home / 291,725.10-437,587.65-70,109.10

Finding the Fourth Proportional to 291,725.10, 437,587.65 and 70,109.10

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Solution

The fourth proportional to 291,725.10, 437,587.65 and 70,109.10 is: 105,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,725.10 : 437,587.65 = 70,109.10 : x
  2. Step 2: Convert to fraction form
    291,725.10/437,587.65 = 70,109.10/x
  3. Step 3: Cross multiply
    291,725.10x = 437,587.65 × 70,109.10
  4. Step 4: Simplify right side
    291,725.10x = 30,678,876,312.62
  5. Step 5: Solve for x
    x = 30,678,876,312.62/291,725.10
  6. Step 6: Final answer
    x = 105,163.65

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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.