Home / 118,428.24-163,432.80-70,709.52

Finding the Fourth Proportional to 118,428.24, 163,432.80 and 70,709.52

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Solution

The fourth proportional to 118,428.24, 163,432.80 and 70,709.52 is: 97,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.24 : 163,432.80 = 70,709.52 : x
  2. Step 2: Convert to fraction form
    118,428.24/163,432.80 = 70,709.52/x
  3. Step 3: Cross multiply
    118,428.24x = 163,432.80 × 70,709.52
  4. Step 4: Simplify right side
    118,428.24x = 11,556,254,840.26
  5. Step 5: Solve for x
    x = 11,556,254,840.26/118,428.24
  6. Step 6: Final answer
    x = 97,580.23

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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.