Home / 130,197.48-179,670.96-76,487.40

Finding the Fourth Proportional to 130,197.48, 179,670.96 and 76,487.40

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Solution

The fourth proportional to 130,197.48, 179,670.96 and 76,487.40 is: 105,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,197.48 : 179,670.96 = 76,487.40 : x
  2. Step 2: Convert to fraction form
    130,197.48/179,670.96 = 76,487.40/x
  3. Step 3: Cross multiply
    130,197.48x = 179,670.96 × 76,487.40
  4. Step 4: Simplify right side
    130,197.48x = 13,742,564,585.90
  5. Step 5: Solve for x
    x = 13,742,564,585.90/130,197.48
  6. Step 6: Final answer
    x = 105,551.69

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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.