Home / 128,830.12-193,312.74-93,582.64

Finding the Fourth Proportional to 128,830.12, 193,312.74 and 93,582.64

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Solution

The fourth proportional to 128,830.12, 193,312.74 and 93,582.64 is: 140,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,830.12 : 193,312.74 = 93,582.64 : x
  2. Step 2: Convert to fraction form
    128,830.12/193,312.74 = 93,582.64/x
  3. Step 3: Cross multiply
    128,830.12x = 193,312.74 × 93,582.64
  4. Step 4: Simplify right side
    128,830.12x = 18,090,716,554.83
  5. Step 5: Solve for x
    x = 18,090,716,554.83/128,830.12
  6. Step 6: Final answer
    x = 140,423.04

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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.