Home / 130,629.75-180,271.16-73,281.87

Finding the Fourth Proportional to 130,629.75, 180,271.16 and 73,281.87

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Solution

The fourth proportional to 130,629.75, 180,271.16 and 73,281.87 is: 101,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,629.75 : 180,271.16 = 73,281.87 : x
  2. Step 2: Convert to fraction form
    130,629.75/180,271.16 = 73,281.87/x
  3. Step 3: Cross multiply
    130,629.75x = 180,271.16 × 73,281.87
  4. Step 4: Simplify right side
    130,629.75x = 13,210,607,345.46
  5. Step 5: Solve for x
    x = 13,210,607,345.46/130,629.75
  6. Step 6: Final answer
    x = 101,130.16

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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.