Home / 131,457.60-197,186.40-130,075.20

Finding the Fourth Proportional to 131,457.60, 197,186.40 and 130,075.20

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Solution

The fourth proportional to 131,457.60, 197,186.40 and 130,075.20 is: 195,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,457.60 : 197,186.40 = 130,075.20 : x
  2. Step 2: Convert to fraction form
    131,457.60/197,186.40 = 130,075.20/x
  3. Step 3: Cross multiply
    131,457.60x = 197,186.40 × 130,075.20
  4. Step 4: Simplify right side
    131,457.60x = 25,649,060,417.28
  5. Step 5: Solve for x
    x = 25,649,060,417.28/131,457.60
  6. Step 6: Final answer
    x = 195,112.80

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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.