Home / 135,300.56-186,715.08-74,875.60

Finding the Fourth Proportional to 135,300.56, 186,715.08 and 74,875.60

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Solution

The fourth proportional to 135,300.56, 186,715.08 and 74,875.60 is: 103,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,300.56 : 186,715.08 = 74,875.60 : x
  2. Step 2: Convert to fraction form
    135,300.56/186,715.08 = 74,875.60/x
  3. Step 3: Cross multiply
    135,300.56x = 186,715.08 × 74,875.60
  4. Step 4: Simplify right side
    135,300.56x = 13,980,403,644.05
  5. Step 5: Solve for x
    x = 13,980,403,644.05/135,300.56
  6. Step 6: Final answer
    x = 103,328.50

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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.