Home / 121,312.48-167,423.67-72,930.07

Finding the Fourth Proportional to 121,312.48, 167,423.67 and 72,930.07

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Solution

The fourth proportional to 121,312.48, 167,423.67 and 72,930.07 is: 100,650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,312.48 : 167,423.67 = 72,930.07 : x
  2. Step 2: Convert to fraction form
    121,312.48/167,423.67 = 72,930.07/x
  3. Step 3: Cross multiply
    121,312.48x = 167,423.67 × 72,930.07
  4. Step 4: Simplify right side
    121,312.48x = 12,210,219,518.82
  5. Step 5: Solve for x
    x = 12,210,219,518.82/121,312.48
  6. Step 6: Final answer
    x = 100,650.98

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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.