Home / 156,807.64-216,413.09-93,145.69

Finding the Fourth Proportional to 156,807.64, 216,413.09 and 93,145.69

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Solution

The fourth proportional to 156,807.64, 216,413.09 and 93,145.69 is: 128,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,807.64 : 216,413.09 = 93,145.69 : x
  2. Step 2: Convert to fraction form
    156,807.64/216,413.09 = 93,145.69/x
  3. Step 3: Cross multiply
    156,807.64x = 216,413.09 × 93,145.69
  4. Step 4: Simplify right side
    156,807.64x = 20,157,946,284.91
  5. Step 5: Solve for x
    x = 20,157,946,284.91/156,807.64
  6. Step 6: Final answer
    x = 128,552.07

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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.