Home / 130,710.16-180,369.48-74,126.80

Finding the Fourth Proportional to 130,710.16, 180,369.48 and 74,126.80

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Solution

The fourth proportional to 130,710.16, 180,369.48 and 74,126.80 is: 102,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,710.16 : 180,369.48 = 74,126.80 : x
  2. Step 2: Convert to fraction form
    130,710.16/180,369.48 = 74,126.80/x
  3. Step 3: Cross multiply
    130,710.16x = 180,369.48 × 74,126.80
  4. Step 4: Simplify right side
    130,710.16x = 13,370,212,370.06
  5. Step 5: Solve for x
    x = 13,370,212,370.06/130,710.16
  6. Step 6: Final answer
    x = 102,289.01

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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.