Home / 130,187.10-195,280.65-128,804.70

Finding the Fourth Proportional to 130,187.10, 195,280.65 and 128,804.70

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Solution

The fourth proportional to 130,187.10, 195,280.65 and 128,804.70 is: 193,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,187.10 : 195,280.65 = 128,804.70 : x
  2. Step 2: Convert to fraction form
    130,187.10/195,280.65 = 128,804.70/x
  3. Step 3: Cross multiply
    130,187.10x = 195,280.65 × 128,804.70
  4. Step 4: Simplify right side
    130,187.10x = 25,153,065,539.06
  5. Step 5: Solve for x
    x = 25,153,065,539.06/130,187.10
  6. Step 6: Final answer
    x = 193,207.05

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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.