Home / 191,117.18-286,565-64,715.24

Finding the Fourth Proportional to 191,117.18, 286,565 and 64,715.24

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Solution

The fourth proportional to 191,117.18, 286,565 and 64,715.24 is: 97,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,117.18 : 286,565 = 64,715.24 : x
  2. Step 2: Convert to fraction form
    191,117.18/286,565 = 64,715.24/x
  3. Step 3: Cross multiply
    191,117.18x = 286,565 × 64,715.24
  4. Step 4: Simplify right side
    191,117.18x = 18,545,122,750.60
  5. Step 5: Solve for x
    x = 18,545,122,750.60/191,117.18
  6. Step 6: Final answer
    x = 97,035.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.