Home / 209,386.77-289,005.07-118,795.77

Finding the Fourth Proportional to 209,386.77, 289,005.07 and 118,795.77

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Solution

The fourth proportional to 209,386.77, 289,005.07 and 118,795.77 is: 163,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,386.77 : 289,005.07 = 118,795.77 : x
  2. Step 2: Convert to fraction form
    209,386.77/289,005.07 = 118,795.77/x
  3. Step 3: Cross multiply
    209,386.77x = 289,005.07 × 118,795.77
  4. Step 4: Simplify right side
    209,386.77x = 34,332,578,889.28
  5. Step 5: Solve for x
    x = 34,332,578,889.28/209,386.77
  6. Step 6: Final answer
    x = 163,967.28

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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.