Home / 162,307.60-223,980.19-90,688.21

Finding the Fourth Proportional to 162,307.60, 223,980.19 and 90,688.21

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Solution

The fourth proportional to 162,307.60, 223,980.19 and 90,688.21 is: 125,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,307.60 : 223,980.19 = 90,688.21 : x
  2. Step 2: Convert to fraction form
    162,307.60/223,980.19 = 90,688.21/x
  3. Step 3: Cross multiply
    162,307.60x = 223,980.19 × 90,688.21
  4. Step 4: Simplify right side
    162,307.60x = 20,312,361,719.89
  5. Step 5: Solve for x
    x = 20,312,361,719.89/162,307.60
  6. Step 6: Final answer
    x = 125,147.33

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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.