Home / 130,206.74-179,688.66-72,844.16

Finding the Fourth Proportional to 130,206.74, 179,688.66 and 72,844.16

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Solution

The fourth proportional to 130,206.74, 179,688.66 and 72,844.16 is: 100,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206.74 : 179,688.66 = 72,844.16 : x
  2. Step 2: Convert to fraction form
    130,206.74/179,688.66 = 72,844.16/x
  3. Step 3: Cross multiply
    130,206.74x = 179,688.66 × 72,844.16
  4. Step 4: Simplify right side
    130,206.74x = 13,089,269,499.23
  5. Step 5: Solve for x
    x = 13,089,269,499.23/130,206.74
  6. Step 6: Final answer
    x = 100,526.82

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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.