Home / 211,417.80-316,948.86-99,038.76

Finding the Fourth Proportional to 211,417.80, 316,948.86 and 99,038.76

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Solution

The fourth proportional to 211,417.80, 316,948.86 and 99,038.76 is: 148,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,417.80 : 316,948.86 = 99,038.76 : x
  2. Step 2: Convert to fraction form
    211,417.80/316,948.86 = 99,038.76/x
  3. Step 3: Cross multiply
    211,417.80x = 316,948.86 × 99,038.76
  4. Step 4: Simplify right side
    211,417.80x = 31,390,222,077.81
  5. Step 5: Solve for x
    x = 31,390,222,077.81/211,417.80
  6. Step 6: Final answer
    x = 148,474.83

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1.5x scale

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.