Home / 130,017.69-179,422.14-72,657.93

Finding the Fourth Proportional to 130,017.69, 179,422.14 and 72,657.93

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Solution

The fourth proportional to 130,017.69, 179,422.14 and 72,657.93 is: 100,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,017.69 : 179,422.14 = 72,657.93 : x
  2. Step 2: Convert to fraction form
    130,017.69/179,422.14 = 72,657.93/x
  3. Step 3: Cross multiply
    130,017.69x = 179,422.14 × 72,657.93
  4. Step 4: Simplify right side
    130,017.69x = 13,036,441,288.57
  5. Step 5: Solve for x
    x = 13,036,441,288.57/130,017.69
  6. Step 6: Final answer
    x = 100,266.67

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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.