Home / 130,128.17-195,220.98-55,312.25

Finding the Fourth Proportional to 130,128.17, 195,220.98 and 55,312.25

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Solution

The fourth proportional to 130,128.17, 195,220.98 and 55,312.25 is: 82,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,128.17 : 195,220.98 = 55,312.25 : x
  2. Step 2: Convert to fraction form
    130,128.17/195,220.98 = 55,312.25/x
  3. Step 3: Cross multiply
    130,128.17x = 195,220.98 × 55,312.25
  4. Step 4: Simplify right side
    130,128.17x = 10,798,110,674.90
  5. Step 5: Solve for x
    x = 10,798,110,674.90/130,128.17
  6. Step 6: Final answer
    x = 82,980.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.