Home / 124,070.10-171,255.69-70,390.80

Finding the Fourth Proportional to 124,070.10, 171,255.69 and 70,390.80

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Solution

The fourth proportional to 124,070.10, 171,255.69 and 70,390.80 is: 97,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,070.10 : 171,255.69 = 70,390.80 : x
  2. Step 2: Convert to fraction form
    124,070.10/171,255.69 = 70,390.80/x
  3. Step 3: Cross multiply
    124,070.10x = 171,255.69 × 70,390.80
  4. Step 4: Simplify right side
    124,070.10x = 12,054,825,023.65
  5. Step 5: Solve for x
    x = 12,054,825,023.65/124,070.10
  6. Step 6: Final answer
    x = 97,161.40

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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.