Home / 134,880.13-186,133.54-74,450.74

Finding the Fourth Proportional to 134,880.13, 186,133.54 and 74,450.74

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Solution

The fourth proportional to 134,880.13, 186,133.54 and 74,450.74 is: 102,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.13 : 186,133.54 = 74,450.74 : x
  2. Step 2: Convert to fraction form
    134,880.13/186,133.54 = 74,450.74/x
  3. Step 3: Cross multiply
    134,880.13x = 186,133.54 × 74,450.74
  4. Step 4: Simplify right side
    134,880.13x = 13,857,779,140.36
  5. Step 5: Solve for x
    x = 13,857,779,140.36/134,880.13
  6. Step 6: Final answer
    x = 102,741.44

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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.