Home / 155,630.47-233,518.61-76,701.64

Finding the Fourth Proportional to 155,630.47, 233,518.61 and 76,701.64

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Solution

The fourth proportional to 155,630.47, 233,518.61 and 76,701.64 is: 115,088.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,630.47 : 233,518.61 = 76,701.64 : x
  2. Step 2: Convert to fraction form
    155,630.47/233,518.61 = 76,701.64/x
  3. Step 3: Cross multiply
    155,630.47x = 233,518.61 × 76,701.64
  4. Step 4: Simplify right side
    155,630.47x = 17,911,258,806.42
  5. Step 5: Solve for x
    x = 17,911,258,806.42/155,630.47
  6. Step 6: Final answer
    x = 115,088.38

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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.