Home / 219,132.32-302,402-118,530.08

Finding the Fourth Proportional to 219,132.32, 302,402 and 118,530.08

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Solution

The fourth proportional to 219,132.32, 302,402 and 118,530.08 is: 163,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,132.32 : 302,402 = 118,530.08 : x
  2. Step 2: Convert to fraction form
    219,132.32/302,402 = 118,530.08/x
  3. Step 3: Cross multiply
    219,132.32x = 302,402 × 118,530.08
  4. Step 4: Simplify right side
    219,132.32x = 35,843,733,252.16
  5. Step 5: Solve for x
    x = 35,843,733,252.16/219,132.32
  6. Step 6: Final answer
    x = 163,571.18

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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.