Home / 213,981.68-295,291.10-118,486.32

Finding the Fourth Proportional to 213,981.68, 295,291.10 and 118,486.32

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Solution

The fourth proportional to 213,981.68, 295,291.10 and 118,486.32 is: 163,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,981.68 : 295,291.10 = 118,486.32 : x
  2. Step 2: Convert to fraction form
    213,981.68/295,291.10 = 118,486.32/x
  3. Step 3: Cross multiply
    213,981.68x = 295,291.10 × 118,486.32
  4. Step 4: Simplify right side
    213,981.68x = 34,987,956,875.09
  5. Step 5: Solve for x
    x = 34,987,956,875.09/213,981.68
  6. Step 6: Final answer
    x = 163,509.12

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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.