Home / 118,424.64-163,423-64,709.92

Finding the Fourth Proportional to 118,424.64, 163,423 and 64,709.92

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Solution

The fourth proportional to 118,424.64, 163,423 and 64,709.92 is: 89,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,424.64 : 163,423 = 64,709.92 : x
  2. Step 2: Convert to fraction form
    118,424.64/163,423 = 64,709.92/x
  3. Step 3: Cross multiply
    118,424.64x = 163,423 × 64,709.92
  4. Step 4: Simplify right side
    118,424.64x = 10,575,089,256.16
  5. Step 5: Solve for x
    x = 10,575,089,256.16/118,424.64
  6. Step 6: Final answer
    x = 89,298.05

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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.