Home / 130,818.61-180,554.57-74,235.25

Finding the Fourth Proportional to 130,818.61, 180,554.57 and 74,235.25

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Solution

The fourth proportional to 130,818.61, 180,554.57 and 74,235.25 is: 102,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,818.61 : 180,554.57 = 74,235.25 : x
  2. Step 2: Convert to fraction form
    130,818.61/180,554.57 = 74,235.25/x
  3. Step 3: Cross multiply
    130,818.61x = 180,554.57 × 74,235.25
  4. Step 4: Simplify right side
    130,818.61x = 13,403,513,271.42
  5. Step 5: Solve for x
    x = 13,403,513,271.42/130,818.61
  6. Step 6: Final answer
    x = 102,458.77

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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.