Home / 130,343.04-179,858.07-72,985.59

Finding the Fourth Proportional to 130,343.04, 179,858.07 and 72,985.59

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Solution

The fourth proportional to 130,343.04, 179,858.07 and 72,985.59 is: 100,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,343.04 : 179,858.07 = 72,985.59 : x
  2. Step 2: Convert to fraction form
    130,343.04/179,858.07 = 72,985.59/x
  3. Step 3: Cross multiply
    130,343.04x = 179,858.07 × 72,985.59
  4. Step 4: Simplify right side
    130,343.04x = 13,127,047,355.21
  5. Step 5: Solve for x
    x = 13,127,047,355.21/130,343.04
  6. Step 6: Final answer
    x = 100,711.53

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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.