Home / 93,142.18-128,543.79-52,305.40

Finding the Fourth Proportional to 93,142.18, 128,543.79 and 52,305.40

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Solution

The fourth proportional to 93,142.18, 128,543.79 and 52,305.40 is: 72,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,142.18 : 128,543.79 = 52,305.40 : x
  2. Step 2: Convert to fraction form
    93,142.18/128,543.79 = 52,305.40/x
  3. Step 3: Cross multiply
    93,142.18x = 128,543.79 × 52,305.40
  4. Step 4: Simplify right side
    93,142.18x = 6,723,534,353.47
  5. Step 5: Solve for x
    x = 6,723,534,353.47/93,142.18
  6. Step 6: Final answer
    x = 72,185.71

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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.