Home / 122,303.36-168,707.12-76,909.48

Finding the Fourth Proportional to 122,303.36, 168,707.12 and 76,909.48

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Solution

The fourth proportional to 122,303.36, 168,707.12 and 76,909.48 is: 106,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,303.36 : 168,707.12 = 76,909.48 : x
  2. Step 2: Convert to fraction form
    122,303.36/168,707.12 = 76,909.48/x
  3. Step 3: Cross multiply
    122,303.36x = 168,707.12 × 76,909.48
  4. Step 4: Simplify right side
    122,303.36x = 12,975,176,871.50
  5. Step 5: Solve for x
    x = 12,975,176,871.50/122,303.36
  6. Step 6: Final answer
    x = 106,090.11

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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.